/*
 * Copyright (c) 2012 Robert Burrell Donkin robertburrelldonkin.name
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 * and associated documentation files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software 
 * is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or 
 * substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
package walrus.text.wiki;

import java.nio.CharBuffer;


public class TitleTrackingWikiParser extends BasicWikiParser {
	
	private TitleTracker[] trackers = new TitleTracker[10];
	
	public TitleTrackingWikiParser(CharBuffer buffer) {
		super(buffer);
	}

	@Override
	protected void title(int numberOfDuplicates) {
		super.title(numberOfDuplicates);
		final int at = at();
		lazyCreate(numberOfDuplicates);
		final TitleTracker titleTracker = trackers[numberOfDuplicates];
		if (titleTracker.mark(at)) {
			final CharSequence title = get(titleTracker.getStart(), titleTracker.getEnd());
			titleTracker.setTitle(title);
		}
	}

	private void lazyCreate(int level) {
		if (trackers[level] == null) {
			trackers[level] = new TitleTracker(level);
		}
	}

	@Override
	protected void reset() {
		super.reset();
		for (TitleTracker tracker: trackers) {
			if (tracker != null) {
				tracker.reset();
			}
		}
	}
	
	public CharSequence getLastTitle(int level) {
		lazyCreate(level);
		return trackers[level].getTitle();
	}
}
